The plunger metering pump of the hydraulic press directly sucks in and discharges the working medium (yellow) through the reciprocating motion of the plunger. Choosing the appropriate plunger material and sealing form can ensure ideal performance of the pump during operation, as both the plunger and seal come into contact with the medium. There are two types of plunger metering pumps: valve pumps and valve free pumps. Piston metering pumps are widely used in the petrochemical industry due to their simple structure and high temperature and pressure resistance. The plunger material includes stainless steel and oxidized ceramics, which have the characteristics of corrosion resistance and high hardness and wear resistance.

In response to the shortcomings of ordinary plunger pumps for high viscosity media in hydraulic presses under high pressure conditions, a valve free rotary plunger metering pump has received increasing attention and is widely used for metering and adding high viscosity media such as syrup, chocolate, and petroleum additives. Due to the structural disadvantage of the inability to achieve complete isolation between the measured medium and the lubricant inside the pump, plunger metering pumps are subject to many limitations in fluid metering applications with high anti pollution requirements. A plunger metering pump is used to accurately and quantitatively transport liquids without solid particles into pressurized or atmospheric vessels and pipelines. Different models of plunger metering pumps can be equipped with variable frequency motors (capable of receiving 4-20mA current signals) or explosion-proof motors according to usage requirements. The plunger pump head has a simple structure, is economical, and has high measurement accuracy, requiring the selection and maintenance of good seals. The lateral automatic centering between the plunger and the seal ensures minimal wear between the two.

SJ1-S plunger metering pump parameter features: maximum flow rate per head: 50000 liters/hour; Maximum discharge pressure: 50MPa; Steady state accuracy ± 1%; Medium viscosity: 0-800mm2/s; The temperature of the conveying medium can reach above 450 ℃. For more product introductions and price requirements of metering pumps, please contact us Other instruments and meters include solenoid valves, spectrophotometers, etc